Yesterday, equity indices closed higher. The S&P 500 rose by 2.51%, while the Nasdaq 100 jumped by 2.80%. The Dow Jones Industrial Average added 2.85%.

This morning, however, US and European equity futures fell, while oil prices moved higher. That market dissonance was triggered by fading optimism about a possible ceasefire between the US and Iran. Tehran issued a statement claiming violations of several terms of the agreement, instantly sowing doubt and reintroducing uncertainty to financial markets.

The news was a cold shower for investors, who until recently were buoyed by hopes of de-escalation of a major geopolitical conflict. It had been assumed that an agreement between the two countries would reduce risks to energy supplies and support global economic activity. As is often the case in the Middle East, the situation remains extremely fragile.

Market reaction was immediate. The drop in equity futures shows investors chose to hedge, take profits, and cut risk exposure. The rebound in oil prices, in turn, reflects concern that tensions in the region may persist and impact crude production or transportation. This dynamic underscores how strongly ongoing geopolitical uncertainty continues to influence global financial markets, making them highly sensitive to even small shifts in diplomatic relations.

Asian stock markets fell by 0.9% after Iranian parliament speaker Mohammad Bagher Ghalibaf said that three points of the ceasefire proposal are currently violated. Wall Street and European index futures were down about 0.2%, signaling the likely end of a four-day global equity advance.

Brent crude gained 2.4% to roughly $97 per barrel, recovering from its steepest drop in more than six years, while transit through the Strait of Hormuz remains effectively closed.

Treasury prices were steady after offsetting an initial intraday rise during the US session. Japanese and Australian government bonds fell amid concern that higher oil would stoke inflation.

As for the S&P 500 technical picture, the main task for buyers today will be to overcome the nearest resistance level of $6,769. That would help the index gain upside momentum and could pave the way for a surge to $6784. Equally a priority for bulls will be control above $6,801, which would strengthen buyers' positions. In the event of a downside move amid reduced risk appetite, buyers must step up around $6,756. A break below that level would quickly push the instrument back to $6,743 and could open the way to $6,727.